Yesterday, Eei Hui, who is making a comeback from a back injury, and Wong Pei Tty pulled off a stunning 21-14, 9-21, 21-18 win over South Koreans Lee Hyo-jung-Lee Kyung-won in the quarter-finals of the Indonesian Open in Jakarta. It was the Malaysian’s first win over the South Koreans in seven years.

Today, world No. 1 Eei Hui-Pei Tty will take on third seeds Cheng Wen-hsing-Chien Yu-chin of Taiwan for a place in the final.

Eei Hui, who turned 27 on Thursday, was ecstatic after beating the formidable Koreans.

“We have been playing against them since we first paired up in 2002 and we have never beaten them. Today, we have made a breakthrough,” she said in a telephone interview.

Eei Hui took a break after hurting her back during the All-England in March. She returned with Pei Tty in last week’s Singapore Open, where they crashed out in the early round.

“Pei Tty and I were able to read our opponents’ game well. We also had a better control of the shuttle while they seemed to be troubled by the draught,” said Eei Hui.

“This win is a big boost to our morale. It will be tough against the Taiwanese tomorrow. We have beaten them before but they have a better record against us. We will try to continue with our momentum here.”

Malaysia will also have one representative each in the men’s singles and doubles semi-finals today.

World No. 1 Lee Chong Wei tamed South Korean Park Sung-hwan 21-9, 21-13 in just 30 minutes. But he won’t be facing Lin Dan next because the Chinese was stunned 21-18, 17-21, 4-21 by compatriot Chen Jin.

Lin Dan could have been injured, judging by the third game score.

The other men’s singles semi-final is an all-Indonesia affair bet­we­en Sony Dwi Kuncoro and Taufik Hidayat.

In the men’s doubles, Koo Kien Keat-Tan Boon Heong, who fought gallantly to overcome Indonesians Luluk Hadiyanto-Joko Riyadi 21-11, 17-21, 21-11, will take on Cai Yun-Fu Haifeng of China for a place in the final.